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E. E. HERRINTON. STRIKING MECHANISM FOR DOOR BELLS.

| (No Model.)

No. 419,150. Patented Jan. 7,1890.

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UNITE STATES PATENT OFFICE,

EDIVARD E. I'IERRINTON, OF GRAND RAPIDS, MICHIGAN, ASSIGNOR, BY MESNEASSIGNMENTS, TO ILIIIAM T. S"AI\IP, OF SAME PLACE.

STRIKING MECHANISM FOR DOOR-BELLS.

SPECIFICATION forming part of Letters Patent No. 419,150, dated January'7, 1890.

Application filed July 2'7, 1888. Serial No. 281,243. (No model) do aZZwhom it may concern:

Be it known that I, EDWARD E. IIERRIN- TON, a citizen of the UnitedStates, residing at Grand Rapids, in the county of Kent and State ofMichigamhave invented certain new and useful Improvements in StrikingMechanisms for Door-Bells and I do hereby declare the following to be afull, clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

My invention relates to improvements in the striking mechanisms ofdoor-bells which are operated by a push-pin, first, to utilize apendulous or swinging hammerin conj unction with the usual form ofdoor-bell; second,

to avoid the use of rigid stops or springs to keep the hammer fromcontact with the bell after striking the same; third, to providemechanism for operating said hammer that will produce two strokes withbut one impulse of the push-pin; fourth, to provide a simple andeffective mechanism not liable to get out of order.

Figure 1 is a front elevation of a device embodying my invention, aportion of the bell being broken away to better show the mechanism; andFig. 2, a side elevation of the same, the bell and door being insection.

A is a plate secured to the door and having a post I, which supports thearm G, which arm is adjusted and secured in position upon said post bythe nut II. To the outer end of said post is attached the bell B in theusual manner. Said plate is also provided with an arm G, which extendsto a point near the rim of the bell. Passing horizontally through anopening near the end of said arm and free to rotate within the same is awire the outer end of which is bent downward at right angles, formingthe arm E, to the end of which is attached the hammer or striker D, saidhammer being thus arranged. to swing freely, like a pendulum, about itspoint of suspension from the arm G and when at rest hanging close to oneside of the bell. The inner end of said Wire is bent horizontally atright angles, forming the arm or lever E, to which is attached by a loopor universal joint the conmeeting-rod F, the opposite end of which rodis connected to the inner end of the lever L by a similar joint, theouter end of said lever being pivoted to the end of the arm G andprovided with a shorter arm M, which projects at right angles to saidlever and at one side of the same, as shown, being directly in front ofthe end of the push-pin K, which rests against said arm and extendshorizontally through the door.

The operation of my device is as follows: hen the pin K is thrustinward, the lever L is depressed, which,through the rod F and arm E,rotates the wire within the arm C and brings the hammer D forcibly incontact with the upper edge of the bell. lVhen the pressure upon the pinis released, the hammer falls by gravity and swinging past theperpendicular strikes the bell again at the side, when said hammerfinally comes to rest below its point of suspension from the arm It willbe observed that when at rest the hammer, by virtue of its gravity, isdirectly below its point of suspension, and thus is clear of the bellafter the'final stroke; and, further, that as the arm E descends and thehammer approaches the upper side of the bell said arm and connecting-rodF form a right line, and continuous pressure upon the pin tends to 'holdthe hammer at a point a little removed from the surface of the bell andout of contact with the same, so that as soon as the first stroke isaccomplished the hammer springs back and allows the bell to vibratefreely, thus holding the hammer back by the pressure upon the pin andavoiding any striking or thumping of the parts against a rigid stop,thus securing an elastic and quiet action and but little loss of power.So, also, when the hammer begins to move, the push-pin moves mostrapidly and has the greatest leverage, and when the hammer is well underway the pin has shorter leverage and moves slowly. The result is a quickstrong blow of the hammer, and but little power wasted in withdrawingthe hammer from contact with the bell.

What I claim and wish to secure is as follows:

1. In striking mechanisms for door-bells, the combination of a pivotedarm having a hammer attached, a pivoted lever having arms substantiallyat right angles to each IOC other, and a push-pin engaging With one armof said lever and the other arm of the said lever connected by a rod tosaid pivoted arm, substantially as described.

2. In striking mechanisms for door-bells, a pendulous hammer havingattached a short arm E and suspended near one side of the bell a pivotedlever having arms substantially at right angles to each other, one armof which is attached to said arm E by a rod and 1 a push-pin engagingwith the other arm of said lever, substantially as described.

3. In striking mechanisms for door-bells, in combination with pivotedarm E, having the hammer attached, the arm E and rod F, 1 adapted toform a right line in the direction of the pull upon said rod When saidhammer is near the bell, and mechanism adapted to pull said rod,substantially as described.

4. In striking mechanisms for door-bells, the arm 0, from Which issuspended the hammer D by means of the Wire E, bent at right angles,passing through said arm 0, and again bent at right angles, forming anarm E, to which is attached a rod F, connecting said arm to mechanismadapted to pull said rod and operate said hammer, substantially asdescribed.

In testimony whereof I affix my signature in presence of two witnesses.

EDWVARD E. HERRINTON.

Vitnesses:

MARK M. PoWERs, LUTHER V. MoULToN.

